All abstracts by Masahiro Oba in conference series: Goldschmidt

(2010) Enhanced Biological Nitrogen and Sulfur Cycles in the Stratified 1.9 Ga Gunflint Ocean
Ishida A, Hashizume K, Oba M & Kakegawa T

(2009) Synthesis of Organic Molecules by Ocean Impacts on the Early Earth
Furukawa Y, Sekine T, Oba M, Kakegawa T & Nakazawa H

(2009) Geochemistry of 1.9 Ga Gunflint Formation in Canada: Unique Oceanic Environments and Microbial Activities
Ishida A, Oba M & Kakegawa T

(2009) Weak Photic-Zone Euxinia at the End of the Permian in Central Pelagic Panthalassa as Recorded in Marine Organic Carbon Isotopes
Takahashi S, Kaiho K, Oba M & Kakegawa T

(2008) Contrast Compositions of Minerals, Kerogens and Lipid-Biomarkers in 1.9 Ga Shallow- and Deep-Water Sedimentary Rocks of the Gunflint Formation, Canada
Ishida A, Kakegawa T & Oba M

(2008) Impact Synthesis of Organic Compounds: Implication for their Mass Production on the Early Earth
Furukawa Y, Sekine T, Oba M, Kakegawa T & Nakazawa H

(2003) Hydrocarbon Biomarkers in a Thermophilic Methanogenic Archaea
Oba M, Sakata S, Kamagata Y & Yoshioka H